AK7744VT Datasheet, PDF (23/50 Pages) Asahi Kasei Microsystems – 24bit 3ch ADC + 24bit 4ch DAC with Audio DSP

[ASAHI KASEI]
[AK7744]
2-3) CONT2 : DA,DSP control
Command Code
Write Read
68h
78h
Name
CONT2
D7
SWA2
D6
SWA1
D5
SWD2
D4
SWD1
D3
PSDA2
D2
OUTE
D1
TEST
D0
Default
X
00h
c D7:SWA2 internal path setting (see p.2 Block diagram)
0:Normal operation (SDINA2 of DSP is input from ADC2)
1:SDINA2 pin connects with SDINA2 of DSP block. Its format is same as SDIN.
d D6:SWA1 internal path setting (see p.2 Block diagram)
0:Normal operation (SDINA1 of DSP is input from ADC1)
1:SDINA1 pin connects with SDINA2 of DSP block. Its format is same as SDIN.
e D5:SWD2 internal path setting (see p.2 Block diagram)
0:Normal operation (SDOUTD2 of DSP outputs to DAC2)
1:SDINA2 pin connects with SDATA of DAC2. Its format is 24bit MSB first or I2S.
f D4:SWD1 internal path setting (see p.2 Block diagram)
0:Normal operation (SDOUTD1 of DSP outputs to DAC1)
1:SDINA1 pin connects with SDATA of DAC1. Its format is 24bit MSB first or I2S.
g D3:PSDA2 DA2 power save control
0:Normal operation
1:DA2 power save
In the case of not using DA2, set this value to “1” and DA2 will RESET.
This can be useful for reducing power consumption.
When changing to normal operation, set this value to “0” at system reset.
h D2:OUTE Output enable ( see Block-diagram)
0:Normal operation (SDOUTA1,SDOUTA2,SDOUTD1,SDOUTD2=”L”)
1: SDOUTA1,SDOUTA2,SDOUTD1 and SDOUTD2 are enable to output.
i D1:TEST
0:Normal operation
1:Test mode (Do NOT use this mode)
j : Always input 0
Note): Underlined settings of c~g = default setting.
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2002/10